RSD

kopcicle

kopcicle

antidisestablishmentarian
Look I'm sure we've all seen this before but :D

IMG_0979wp.jpg

For more pics
http://rolandsandsdesign.com/wp/2008/07/24/cr500/#more-1873

Thoughts , ideas , observations , criticism (there usually has to be at least one ) ?

~kop
 
Wow, very interesting bikes from that RSD! But good to know he's a d-bag. LOL
 
Everything looks awesome to me except the headlight setup on it. I think it would have looked better with just a round headlight.
 
I was hoping to spur some discussion about bigger (350 and up ) singles in alloy frames and well thought out geometry and ergonomics .

For instance even the air cooled previous generation may be viable for a unique build .

I was thinking of the earlier TM400 , big Maico , Big Horn , YZ490 , Big Husky ( the auto ? :D ) . Then a look at alloy 250 cc frames and cross steering head bearings to complete street front ends . These type of trellis or perimeter tube frames are "relatively" simple to design and build for any reasonably talented tig hand .

Charging systems could even be driven off a chain tensioner .

Anyone here remember the solid rush of a hooked up 2 stroke big single ?

I'll admit that a steel rather than alloy or 4130 molly would be more practical for a 4 stroke as well as using a real charging system .

Just some random thoughts

Now back to the left coast d'bags :P

~kop
 
kopcicle said:
I was hoping to spur some discussion about bigger (350 and up ) singles in alloy frames and well thought out geometry and ergonomics .

For instance even the air cooled previous generation may be viable for a unique build .

I was thinking of the earlier TM400 , big Maico , Big Horn , YZ490 , Big Husky ( the auto ? :D ) . Then a look at alloy 250 cc frames and cross steering head bearings to complete street front ends . These type of trellis or perimeter tube frames are "relatively" simple to design and build for any reasonably talented tig hand .

Charging systems could even be driven off a chain tensioner .

Anyone here remember the solid rush of a hooked up 2 stroke big single ?

I'll admit that a steel rather than alloy or 4130 molly would be more practical for a 4 stroke as well as using a real charging system .

Just some random thoughts

Now back to the left coast d'bags :P

~kop
Click to expand...

Well than you should've said that my man... ;)
 
kopcicle said:
I was hoping to spur some discussion about bigger (350 and up ) singles in alloy frames and well thought out geometry and ergonomics .

For instance even the air cooled previous generation may be viable for a unique build .

I was thinking of the earlier TM400 , big Maico , Big Horn , YZ490 , Big Husky ( the auto ? :D ) . Then a look at alloy 250 cc frames and cross steering head bearings to complete street front ends . These type of trellis or perimeter tube frames are "relatively" simple to design and build for any reasonably talented tig hand .

Charging systems could even be driven off a chain tensioner .

Anyone here remember the solid rush of a hooked up 2 stroke big single ?

I'll admit that a steel rather than alloy or 4130 molly would be more practical for a 4 stroke as well as using a real charging system .

Just some random thoughts

Now back to the left coast d'bags :P

~kop
Click to expand...
Instead of going through the hassle of adding a street front end why not just reduce the travel on the mx forks? As you can see from my avatar I'm a supermoto racer and I can tell you modified mx bikes handle very well on tarmac. A great (modern) cafe racer could be made from an mxer, I think I may take on such a project next.
 
I too would like to tackle a similar project... I keep telling myself that I will do it to this old tt-350 I have... but I would like more power so I may try and pick up a registered modern dual sport to do it to.
 
If you're gonna go for a big single, why not go for a BIG single? DB34 engine might be nice or even a Manx 500? I'm sure there's gotta be some old Enfields laying around as well.

The engine from an S40 might be good, though maybe a bit more modern.
 
Yeah I actually want to use a S40 motor in an upcoming project, but they are kinda lazy and heavy for anything real sporting. Better suited for a chop, rather than a canyon carver.

Yeah the tt350 is actually a great motor and really opens up, but I was looking for more in the 50 to 60 hp range... don't get me wrong, 35 to 40 hp is great, and with a light enough bike it could really be fun, but a fuel injected 450 motor and some go fast parts really gets me all tingly inside
 
Sporty singles create a lot of interest but for some reason they fail to turn into popular demand. Over the years there have been any number of singles racers up to and including the 450 class that the same RS was trying to push.

For street legal bikes they are a bit of a non starter because so few are able to be registered. There's a few dual sports around but few like the old XR series with strong motors that could be turned into a good street bike.

Any modern 450 MX bike could be converted

http://rolandsandsdesign.com/wp/2011/03/30/ktm-530-smr/

http://www.autoblog.com/2008/02/29/roland-sands-450-super-single-race-bike-available-now/

http://thekneeslider.com/archives/2008/02/28/roland-sands-450-supersingle/

http://www.sportbikes.ws/showthread.php?t=104342

But none of those are legal, so start with a KTM, or a Honda http://powersports.honda.com/2009/crf230l.aspx

or even one of these http://www.happyscooters.com/250cc-Motocross-Style-Dirt-Bike-5-Speeds-Manual-p-449-11fg11.html

http://www.dsadventures.com/dsbikes.htm
 
legal

Well now we get to the meat of the deal at last . Without going through MSO hoops the best thing I can suggest is to graft a titled steering head onto frame of your choosing . It really comes down to a number on a frame and a piece of paper to go with it . I'll be running several of these hybrids through state inspection this spring just to see if it flies as well as brushing up on my tube welding skills .

~kop
 
Well that KTM is for sure legal... I was at Aritrix and saw Chris working on it, it has everything it needs to be legal, just needs a plate which is easy on the new four strokes.
 
Months back i was looking at a cr500 that a guy had built and licenced as a motard in British Columbia. I've wanted to do something like that ever since i saw the build but the legal hoops are too many to jump through to get it licenced. I'm not sure how he did it, but he claimed it was street legal. Might have been a head tube swap?

Either way, these bikes would be absolutely stupid fun to ride around on the streets. What a cool build.
 
Probably a xr frame with a cr motor... or it could have been a pre 04 CR and then you can get them reg without too much trouble...
 
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